zoobie is a derogatory term for a certain genre of people who attend BYU. The term evolved from the word zoo, which was a common nickname for the university in the 80’s. Possible explanations for this nickname may include the chaotic, often carnival-like atmosphere of raging hormones and desperate hunting for mates.
A zoobie is the quintessential BYU student. A zoobie is just a member of the flock of sheep. Zoobies don’t think for themselves, they are the oblivious morons who roam BYU campus in droves.
You can’t tell a zoobie by appearance only, although there is certainly a stereotyped look. Preppy sweater boys and plastic girls are often associated with zoobiehood.